Antec Gaming Series ONE Mid-Tower PC/Gaming Computer Case with 10 Drive Bays, 120mm Fans x 2 Pre-Installed, 120/140mm Fan Mounts, USB 3.0 x 2, 7 PCI-E Slots, Max CPU Cutout for ATX, M-ATX and Mini-ITX Ample cooling with 120mm x 2 fans pre-installed and 120/140mm fan locations x 3. Tool-less drive bays with 2.5 x 2, 5.25 x 3 and 3.5 x 5; 7 expansion slots for multiple GPUs with max size of 266mm. Supports ATX, Micro-ATX and mini-ITX motherboard; multiple I/O ports with USB 3.0 x 2, USB 2.0 adapter and audio in/out for easy front access and controls. Dimension (HxWxD): 438mm x 208mm x 488mm; 155mm max CPU cooler height and 266mm max video card size. The max size CPU cutout lets you install a new CPU with ease; a bottom-mounted PSU intake with air filter.